The performance characteristics of prehospital paediatric trauma triage tools for children. (Range in brackets) = (95% CI)
| Tool | n | ISS >15 | Sensitivity | Specificity | Positive Predictive Value | Negative Predictive Value | Positive Likelihood Ratio | Negative Likelihood Ratio | Under-triage rate (%) | Over-triage rate (%) |
| East Midlands | 701 | 230 | 0.97 (0.93 to 0.99) | 0.17 (0.14 to 0.21) | 0.36 (0.33 to 0.40) | 0.91 (0.83 to 0.96) | 1.17 (1.11 to 1.22) | 0.20 (0.10 to 0.41) | 3 | 83 |
| London | 0.96 (0.92 to 0.98) | 0.28 (0.24 to 0.33) | 0.39 (0.35 to 0.44) | 0.93 (0.88 to 0.97) | 1.33 (1.25 to 1.42) | 0.15 (0.08 to 0.29) | 4 | 72 | ||
| North West | 0.93 (0.89 to 0.96) | 0.20 (0.17 to 0.24) | 0.36 (0.32 to 0.40) | 0.86 (0.78 to 0.92) | 1.17 (1.10 to 1.24) | 0.34 (0.21 to 0.57) | 7 | 80 | ||
| Northern | 0.91 (0.87 to 0.95) | 0.23 (0.19 to 0.27) | 0.37 (0.33 to 0.41) | 0.85 (0.77 to 0.90) | 1.19 (1.11 to 1.27) | 0.38 (0.24 to 0.59) | 9 | 77 | ||
| South West London; Surrey | 0.88 (0.83 to 0.92) | 0.41 (0.37 to 0.46) | 0.42 (0.38 to 0.47) | 0.87 (0.82 to 0.91) | 1.49 (1.36 to 1.63) | 0.30 (0.21 to 0.43) | 12 | 59 | ||
| Wessex | 0.77 (0.71 to 0.83) | 0.47 (0.43 to 0.52) | 0.42 (0.37 to 0.47) | 0.81 (0.76 to 0.86) | 1.46 (1.31 to 1.63) | 0.48 (0.37 to 0.62) | 23 | 53 | ||
| Paediatric Trauma Score | 0.39 (0.33 to 0.46) | 0.93 (0.91 to 0.96) | 0.74 (0.66 to 0.82) | 0.76 (0.72 to 0.79) | 5.9 (4.08 to 8.66) | 0.65 (0.59 to 0.73) | 61 | 7 | ||
| Paediatric Triage Tape | 283 | 94 | 0.36 (0.27 to 0.47) | 0.84 (0.78 to 0.89) | 0.53 (0.40 to 0.66) | 0.73 (0.66 to 0.78) | 2.28 (1.49 to 3.48) | 0.76 (0.64 to 0.89) | 63 | 16 |
ISS, injury severity score.